Preparation equipment and production method of powdery metal alloy adhesive

Abstract

The invention relates to the technical field of powder metal alloy adhesive preparation, in particular to powder metal alloy adhesive preparation equipment which comprises a melting furnace, a feeding mechanism is arranged on the upper portion of the melting furnace, a material barrel is sleeved with the melting furnace, a hollow cavity is formed in the side wall of the melting furnace, and a heating mechanism is arranged at the bottom of the melting furnace. The heating mechanism comprises a heat conducting plate, a heating rod, a temperature control pipe, a first temperature sensor, a cooler and the like. The invention discloses a production method of an adhesive for a powdery metal alloy, which is capable of uniformly heating, so that an adhesive raw material in a charging basket is uniformly heated, and the preparation efficiency and the product quality of the adhesive are improved. Comprising the steps of preparing raw materials, starting a third motor, feeding the raw materials, crushing the raw materials, stirring and mixing, starting a heating mechanism, starting a high-temperature-resistant oil pump, starting a first motor, circularly heating, forming an adhesive, outputting the adhesive and the like. The method can quickly and fully react and uniformly heat, so that the adhesive raw material in the charging basket is uniformly heated.

Description

Technical Field

[0001] The invention relates to the technical field of powdered metal alloy adhesive preparation, and in particular to a preparation device and a production method for a powdered metal alloy adhesive. Background Art

[0002] The role of the metal powder binder is to bind the metal powder together to form a green body with a certain shape and strength. After removing the binder, the metal powder still maintains its original shape and structure, providing a basis for the subsequent sintering process.

[0003] According to the Chinese patent publication number CN101489704A, "A binder for powdered metal or metal alloy or mixture thereof", the patent discloses the composition of the binder for powdered metal or metal alloy or mixture thereof;

[0004] The adhesive has the following components: B1, B2, and B3;

[0005] B1) 50 to 96% by weight of one or more polyoxymethylene homopolymers or copolymers;

[0006] B2) 2 to 35 wt.% of one or more polyolefins;

[0007] B3) 2 to 40% by weight of poly-1,3-dioxepane or poly-1,3-dioxolane or mixtures thereof, where the weight proportions of components B1, B2 and B3 add up to 100%.

[0008] A metal powder is mixed with an organic binder to form a thermoplastic composition, the thermoplastic composition is molded into a green body by injection molding, extrusion or pressing, the green body is treated in a gaseous acid atmosphere at high temperature to remove the organic binder, and the green body without the binder is sintered to obtain a powder metal body.

[0009] Existing powdered metal alloy binder preparation equipment usually adopts a single heating method, such as electric heating or flame heating, when heating the binder. For example, Chinese patent announcement No. CN104329941B proposes a melting furnace, in which several graphite electrodes are connected in series to form a ring structure and are sleeved on the outside of the heating tube, thereby avoiding the possibility of graphite electrodes breaking due to the rotation of the heating tube.

[0010] However, this heating method has the following problems:

[0011] 1. Uneven heating: Since the position of the heating source is fixed, the heating tube will heat faster or at a higher temperature near the graphite electrode, causing the adhesive to be heated unevenly during the heating process, which is prone to local overheating or overcooling.

[0012] 2. Imprecise temperature control: Existing heating methods make it difficult to achieve precise temperature control, which can easily lead to over-high or over-low temperatures, affecting the quality and performance of the adhesive.

[0013] If the temperature during the preparation of the adhesive cannot be accurately controlled, the temperature may be too high, causing the components in the adhesive to decompose or deteriorate, or the temperature may be too low, prolonging the preparation time and affecting production efficiency. Summary of the invention

[0014] The object of the present invention is to provide a preparation device and production method for a powdered metal alloy adhesive, so as to solve the problems in the prior art that the melting furnace or other heating equipment heats the adhesive raw material unevenly and cannot accurately control the temperature of the adhesive raw material.

[0015] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0016] A preparation device for a powdered metal alloy binder comprises a melting furnace, wherein a feeding mechanism is arranged on the upper part of the melting furnace;

[0017] A material barrel is sleeved inside the melting furnace, a hollow cavity is arranged inside the side wall of the melting furnace, the hollow cavity is filled with heat transfer oil, and a heating mechanism is arranged at the bottom of the melting furnace;

[0018] The heating mechanism includes a heat-conducting plate, the interior of the heat-conducting plate is coated with a heating rod and a heat-conducting tube, one end of the heat-conducting tube is connected to the interior of the hollow cavity, the other end of the heat-conducting tube is connected to a high-temperature resistant oil pump, a temperature-controlling tube is connected between the high-temperature resistant oil pump and the hollow cavity, and a first temperature sensor and a cooler are installed outside the temperature-controlling tube.

[0019] A toggle member is rotatably connected inside the hollow cavity of the melting furnace.

[0020] As a further solution of the present invention: the heat conducting pipes are multi-tube parallel type, and the heat conducting pipes and the temperature control pipes are both covered with insulation sleeves.

[0021] As a further solution of the present invention: the cooler includes a liquid cooling coil, which is sleeved on the outside of the temperature control tube, one end of the liquid cooling coil is connected to a water pump, the water inlet end of the water pump is connected to a cold water tank, and the other end of the liquid cooling coil is connected to a drain pipe.

[0022] As a further solution of the present invention: the toggle member includes a turntable, which is rotatably connected to the bottom of the hollow cavity of the melting furnace, and a plurality of spoiler paddles are fixedly connected to the upper part of the turntable, and a gear ring is fixedly connected to the upper end of the spoiler paddle, and a first motor is fixedly connected to the outside of the melting furnace, and a driving gear is installed on the outside of the driving shaft of the first motor, and the driving gear is meshed with the outer side of the gear ring.

[0023] As a further solution of the present invention: a second temperature sensor is arranged inside the barrel, and a discharge valve is arranged at the bottom of the barrel, and the discharge valve passes through the bottom of the melting furnace.

[0024] As a further solution of the present invention: a liftable stirring mechanism is arranged inside the material barrel, the liftable stirring mechanism includes a stirring blade, a stirring shaft is fixedly connected to the middle of the stirring blade, a support frame is fixedly connected to the outside of the melting furnace, a threaded rod is threadedly connected to the middle of the support frame, the lower end of the threaded rod is fixedly connected to the stirring shaft, guide rails are fixedly connected to both sides of the upper part of the support frame, a second motor is slidably connected to the inside of the guide rail, and the drive shaft of the second motor is fixedly connected to the threaded rod.

[0025] As a further solution of the present invention: the stirring blade is curved, and scrapers are provided at both ends of the stirring blade, and the scrapers are in contact with the inner wall of the barrel.

[0026] As a further solution of the present invention: the feeding mechanism includes a feeding cavity, the lower end of the feeding cavity is connected to a crushing channel, the crushing channel is inclined, and the lower end of the crushing channel is connected to the inside of the barrel.

[0027] As a further solution of the present invention: a support rod is fixedly connected to the bottom of the crushing channel, a knife shaft is connected to the internal rotating shaft of the crushing channel, a crushing knife head is fixedly connected to the outside of the knife shaft, a third motor is fixedly connected to one end of the upper part of the crushing channel, and a drive shaft of the third motor is fixedly connected to the knife shaft.

[0028] A method for producing a powdered metal alloy binder comprises the following steps:

[0029] S1. Prepare raw materials according to the adhesive formula, weigh the raw materials for adhesive preparation according to the amount and ratio of raw materials;

[0030] S2. Start the third motor, which drives the knife shaft to rotate inside the crushing channel through the drive shaft;

[0031] S3. The prepared adhesive raw material is put into the crushing channel through the feed chamber, and the knife shaft rotates at high speed to crush the adhesive raw material entering the crushing channel;

[0032] S4. The crushed adhesive raw material is fed into the material barrel through the inclined crushing channel;

[0033] S5. The adhesive raw materials are stirred and mixed inside the barrel by a lifting stirring mechanism;

[0034] S6. The heating mechanism is started, the heating rod starts to heat up, the heat of the heating rod is transferred to the heat pipe through the heat conduction plate, and the heat conduction oil inside the heat conduction pipe is heated;

[0035] S7. Start the high temperature oil pump, the high temperature oil pump drives the heat transfer oil to circulate, the heated heat transfer oil is sent into the hollow cavity of the melting furnace, the temperature inside the melting furnace rises, and the barrel is heated;

[0036] S8. Start the first motor, drive the toggle member to rotate through the first motor, and rotate the spoiler paddle of the toggle member inside the hollow cavity to stir and mix the heat transfer oil inside the hollow cavity;

[0037] S9. The heat transfer oil passes through the heat transfer pipe driven by the high temperature resistant oil pump, and the heat transfer oil is circulated and heated, so that the temperature of the heat transfer oil inside the hollow cavity is maintained in the range of 150-220℃;

[0038] S10. The adhesive raw material inside the barrel is heated and melted, and an adhesive is formed under the action of stirring and mixing. After the adhesive is prepared, the discharge valve at the bottom of the barrel is opened, and the adhesive is discharged through the discharge valve of the barrel.

[0039] Beneficial effects of the present invention:

[0040] First, the present invention arranges a hollow cavity in the side wall of the melting furnace, fills the hollow cavity with heat transfer oil, heats the heat transfer oil by a heating mechanism, and then drives the heat transfer oil to circulate by a high-temperature resistant oil pump, so that the temperature inside the melting furnace rises, the barrel is heated, and a toggle piece is arranged inside the hollow cavity to make the heat transfer oil circulate inside the hollow cavity, thereby achieving uniform heating of the barrel and avoiding local overheating or overcooling;

[0041] Second, the present invention uses a cooler to cool the high-temperature heat transfer oil passing through the temperature control tube, thereby realizing accurate control of the internal temperature of the melting furnace. The specific implementation method is that the first temperature sensor installed outside the temperature control tube is used to detect the temperature of the heat transfer oil passing through. When the internal temperature of the melting furnace is high, the first temperature sensor will detect a high temperature signal.

[0042] When the first temperature sensor detects a high temperature signal, the control system disconnects the circuit of the heating rod and stops heating the thermal oil to prevent the temperature from rising further.

[0043] The cooler includes a liquid cooling coil, which is sleeved on the outside of the temperature control tube. When the heating rod circuit is disconnected, the cooler starts to work. The water pump draws cold water from the cold water tank and enters the liquid cooling coil. The liquid cooling coil exchanges heat with the temperature control tube, thereby quickly cooling the heat transfer oil inside the temperature control tube.

[0044] Then the first temperature sensor continues to detect the temperature of the thermal oil. When the temperature does not reach the control range, the high temperature oil pump continues to drive the thermal oil to circulate and cool it down through the cooler. This process will continue until the temperature of the thermal oil reaches the set value.

[0045] When the temperature of the heat transfer oil reaches the set value, the control system will stop the cooler and stop cooling the heat transfer oil. At this time, the temperature inside the melting furnace is precisely controlled and maintained within a suitable range, avoiding the problem of excessive heating causing the performance of the adhesive to deteriorate. Through the above steps, the cooler can effectively cool the high-temperature heat transfer oil passing through the temperature control tube, thereby achieving precise control of the temperature inside the melting furnace, ensuring that the preparation process of the adhesive is carried out under suitable temperature conditions, and ensuring the performance and quality of the adhesive. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2 It is a schematic diagram of the internal structure of the hollow cavity of the melting furnace in the present invention;

[0049] Figure 3 It is a schematic diagram of the internal structure of the barrel in the present invention;

[0050] Figure 4 It is a schematic diagram of the heating mechanism structure in the present invention.

[0051] In the figure: 1, melting furnace; 201, feeding chamber; 202, crushing channel; 3, barrel; 4, hollow cavity; 501, heat conduction plate; 502, heating rod; 503, heat conduction pipe; 504, high temperature resistant oil pump; 505, temperature control pipe; 506, first temperature sensor; 507, cooler; 601, turntable; 602, spoiler paddle; 603, gear ring; 604, first motor; 605, driving gear; 7, second temperature sensor; 8, discharge valve; 901, stirring blade; 902, stirring shaft; 903, support frame; 904, threaded rod; 905, guide rail; 906, second motor. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] like Figure 1-Figure 4 As shown, a preparation device for a powdered metal alloy binder comprises a melting furnace 1, wherein a feeding mechanism is provided at the upper portion of the melting furnace 1;

[0054] A barrel 3 is sleeved inside the melting furnace 1, a hollow cavity 4 is arranged inside the side wall of the melting furnace 1, and the hollow cavity 4 is filled with heat transfer oil, which is mineral oil, vegetable oil or silicone oil, preferably silicone oil, which has high thermal stability and chemical stability and can withstand high temperatures. A heating mechanism is arranged at the bottom of the melting furnace 1, and the temperature inside the melting furnace 1 is increased by the heating mechanism;

[0055] The heating mechanism includes a heat conducting plate 501. A base is provided at the bottom of the melting furnace 1. The heat conducting plate 501 is installed inside the base. The inside of the base adopts a hollow heat-insulating design to reduce internal heat loss. The inside of the heat conducting plate 501 is covered with a heating rod 502 and a heat conducting pipe 503. The heating rod 502 is provided below the heat conducting pipe 503. The high temperature of the heating rod 502 is transferred to the heat conducting pipe 503 through the heat conducting plate 501.

[0056] The heat pipe 503 and the heat transfer oil therein are heated. The heat transfer plate 501 can be made of metal material, ceramic material or carbon material, preferably carbon fiber among carbon materials, which has excellent thermal conductivity and high temperature resistance, high heat transfer efficiency, and improved energy conversion rate.

[0057] One end of the heat pipe 503 is connected to the inside of the hollow cavity 4, and the other end of the heat pipe 503 is connected to a high-temperature resistant oil pump 504. A temperature control pipe 505 is connected between the high-temperature resistant oil pump 504 and the hollow cavity 4, and a first temperature sensor 506 and a cooler 507 are installed outside the temperature control pipe 505.

[0058] The heat transfer oil is circulated by the high temperature resistant oil pump 504, and the heated heat transfer oil is sent into the hollow cavity 4 of the melting furnace 1. The temperature inside the melting furnace 1 rises, which heats the barrel 3. The temperature of the heat transfer oil inside the hollow cavity 4 can be controlled by the first temperature sensor 506 and the cooler 507 outside the temperature control tube 505. When the temperature inside the melting furnace 1 is high, the circuit of the heating rod 502 is disconnected, and the high temperature heat transfer oil passing through the temperature control tube 505 is cooled by the cooler 507. The temperature is detected by the first temperature sensor 506. When the temperature does not reach the control range, the heat transfer oil continues to circulate and cool until the temperature of the heat transfer oil reaches the set value and stops cooling, so as to prevent the temperature inside the melting furnace 1 from being too high, causing the components in the adhesive to decompose or deteriorate, thereby affecting the performance and quality of the adhesive, and avoiding the problem of adhesive performance degradation due to excessive heating.

[0059] Furthermore, the cooler 507 includes a liquid cooling coil, which is sleeved on the outside of the temperature control tube 505, one end of the liquid cooling coil is connected to a water pump, the water inlet end of the water pump is connected to a cold water tank, and the other end of the liquid cooling coil is connected to a drain pipe;

[0060] The cold water in the cold water tank is pumped by a water pump to enter the liquid cooling coil, and the liquid cooling coil exchanges heat with the temperature control tube 505, so that the heat transfer oil in the temperature control tube 505 is quickly cooled;

[0061] The hollow cavity 4 of the melting furnace 1 is rotatably connected with a toggle piece. By rotating the toggle piece inside the hollow cavity 4 of the melting furnace 1, the heat transfer oil inside the hollow cavity 4 can be stirred to make the temperature of the heat transfer oil inside the hollow cavity 4 uniform, avoid the problem of local oil temperature being too high, and make the adhesive raw material inside the barrel 3 heated evenly, thereby improving the adhesive preparation efficiency and product quality.

[0062] In some specific embodiments, such as Figure 4 As shown, the heat pipe 503 adopts a multi-tube parallel type, and the heat pipe 503 and the temperature control tube 505 are both covered with an insulation sleeve. The multi-tube parallel heating method is that multiple heat pipes 503 are installed inside the heat conductive plate 501, so that the heating rod 502 heats multiple thinner heat pipes 503 at the same time, increases the heating area, and improves the heating efficiency. The multiple thinner heat pipes 503 are connected to the high temperature resistant oil pump 504, and more heat conduction oil is quickly transported to the inside of the hollow cavity 4, thereby increasing the heating speed of the melting furnace 1 and improving the heating efficiency.

[0063] In some specific embodiments, such as Figure 2 As shown, the toggle member includes a turntable 601, which is rotatably connected to the bottom of the hollow cavity 4 of the melting furnace 1, and a plurality of spoiler paddles 602 are fixedly connected to the upper part of the turntable 601, and the plurality of spoiler paddles 602 are distributed in a circular array on the upper part of the turntable 601, and a gear ring 603 is fixedly connected to the upper end of the spoiler paddle 602, and the gear ring 603 is rotatably connected to the inside of the upper end of the hollow cavity 4, and a connection port is opened on the outer side of the upper end of the hollow cavity 4;

[0064] A first motor 604 is fixedly connected to the outside of the melting furnace 1, and a driving gear 605 is installed on the outside of the driving shaft of the first motor 604. The driving gear 605 is meshed with the gear ring 603 at the connecting port. The first motor 604 drives the gear ring 603 to rotate inside the hollow cavity 4 through the driving gear 605. The gear ring 603 drives multiple circumferentially distributed spoiler paddles 602 and the turntable 601 to rotate. The heat transfer oil inside the hollow cavity 4 is stirred and mixed by the spoiler paddles 602 to make its temperature uniform, so that the material barrel 3 inside the melting furnace 1 is evenly heated.

[0065] In some specific embodiments, such as Figure 3 As shown, a lifting stirring mechanism is provided inside the barrel 3, and the lifting stirring mechanism includes a stirring blade 901, and the stirring blade 901 is rotated to mix the adhesive raw material inside the barrel 3, and at the same time, the adhesive raw material can be evenly heated;

[0066] The stirring blade 901 is fixedly connected to a stirring shaft 902 in the middle, and the outside of the melting furnace 1 is fixedly connected to a support frame 903. The lower end of the support frame 903 can be bolted or locked to the outside of the melting furnace 1 for easy disassembly.

[0067] A threaded rod 904 is threadedly connected to the middle part of the support frame 903, and the lower end of the threaded rod 904 is fixedly connected to the stirring shaft 902. Guide rails 905 are fixedly connected to both sides of the upper part of the support frame 903. A second motor 906 is slidably connected inside the guide rails 905, and the driving shaft of the second motor 906 is fixedly connected to the threaded rod 904.

[0068] Slide blocks are fixedly connected to both sides of the second motor 906, and a slide groove is arranged on the inner side of the guide rail 905. The slide blocks on both sides of the second motor 906 are slidably connected with the slide groove inside the guide rail 905. The second motor 906 drives the threaded rod 904 to rotate through the driving shaft, and the threaded rod 904 drives the stirring shaft 902 to rotate, and the stirring blade 901 is driven to rotate through the stirring shaft 902, so as to stir and mix the adhesive inside the barrel 3. At the same time, the threaded rod 904 cooperates with the internal thread of the middle part of the support frame 903, so that the threaded rod 904 rotates and moves up and down at the same time, which will drive the stirring blade 901 to move up and down. The lifting stirring of the stirring blade 901 will stir the adhesive inside the barrel 3 more fully. The second motor 906 slides up and down inside the guide rail 905 and can still stably drive the threaded rod 904;

[0069] Furthermore, the stirring blade 901 is curved, and scrapers are provided at both ends of the stirring blade 901, and the scrapers are in contact with the inner wall of the barrel 3;

[0070] The stirring blade 901 is curved to increase the contact surface with the material. The scrapers at both ends of the stirring blade 901 can scrape off the adhesive on the inner wall of the barrel 3, so that the materials are mixed more evenly and the quality of bonding is guaranteed;

[0071] In some specific embodiments, such as Figure 1As shown, the feeding mechanism includes a feeding chamber 201, the lower end of the feeding chamber 201 is connected to a crushing channel 202, the crushing channel 202 is inclined, the lower end of the crushing channel 202 is connected to the inside of the barrel 3, the bottom of the crushing channel 202 is fixedly connected to a support rod, there are multiple support rods, the crushing channel 202 is fixedly supported by the support rod, the internal rotating shaft of the crushing channel 202 is connected to a knife shaft, the outside of the knife shaft is fixedly connected to a crushing cutter head, the knife shaft is driven to rotate by a third motor, and the knife shaft drives multiple crushing cutter heads to rotate at high speed, and the adhesive raw materials entering the crushing channel 202 are crushed by the high-speed rotating crushing cutter heads, which is beneficial to its rapid and sufficient reaction during the preparation process;

[0072] A third motor is fixedly connected to one end of the upper portion of the crushing channel 202. The third motor is installed outside the crushing channel 202 and is fixedly supported by the crushing channel 202. The drive shaft of the third motor is fixedly connected to the knife shaft.

[0073] A second temperature sensor 7 is provided inside the barrel 3, and a discharge valve 8 is provided at the bottom of the barrel 3, and the discharge valve 8 passes through the bottom of the melting furnace 1; the temperature inside the barrel 3 is monitored by the second temperature sensor 7, which is beneficial to the temperature control of the heating of the adhesive raw material, and the discharge valve 8 is arranged at the bottom of the barrel 3, which is beneficial to the prepared adhesive to flow out from the bottom, and the discharge is convenient.

[0074] A pressure relief valve is installed outside the hollow cavity 4 of the melting furnace 1 to prevent the problem of excessive pressure inside the hollow cavity 4 when the internal oil temperature rises.

[0075] A method for producing a powdered metal alloy binder comprises the following steps:

[0076] S1. Prepare raw materials according to the adhesive formula, weigh the raw materials for adhesive preparation according to the amount and ratio of raw materials;

[0077] S2. Start the third motor, which drives the knife shaft to rotate inside the crushing channel 202 through the drive shaft;

[0078] S3. The prepared adhesive raw material is put into the crushing channel 202 through the feed chamber 201, and the knife shaft rotates at high speed to crush the adhesive raw material entering the crushing channel 202;

[0079] S4. The crushed adhesive raw material is fed into the barrel 3 through the inclined crushing channel 202;

[0080] S5. The adhesive raw material is stirred and mixed by the lifting stirring mechanism inside the barrel 3;

[0081] S6. The heating mechanism is started, the heating rod 502 starts to heat up, the heat of the heating rod 502 is transferred to the heat pipe 503 through the heat conducting plate 501, and the heat conducting oil inside the heat pipe 503 is heated;

[0082] S7. Start the high temperature oil pump 504, the high temperature oil pump 504 drives the heat transfer oil circulation, the heated heat transfer oil is sent into the hollow cavity 4 of the melting furnace 1, the temperature inside the melting furnace 1 rises, and the barrel 3 is heated;

[0083] S8. Start the first motor 604, drive the toggle member to rotate through the first motor 604, and rotate the spoiler paddle 602 of the toggle member inside the hollow cavity 4 to stir and mix the heat transfer oil inside the hollow cavity 4;

[0084] S9. The heat transfer oil passes through the heat transfer pipe 503 under the drive of the high temperature oil pump 504, and the heat transfer oil is circulated and heated, so that the heat transfer oil temperature inside the hollow cavity 4 is maintained in the range of 150-220°C;

[0085] S10. The adhesive raw material inside the barrel 3 is heated and melted, and an adhesive is formed under stirring and mixing. After the adhesive is prepared, the discharge valve 8 at the bottom of the barrel 3 is opened, and the adhesive is output through the discharge valve 8 of the barrel 3.

[0086] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0087] The binder raw material of powdered metal alloy is added into the material barrel 3 through the feeding mechanism, and the crushing blade of the feeding mechanism crushes the binder raw material entering the crushing channel 202, which is beneficial to its rapid and full reaction in the preparation process.

[0088] The heating rod 502 and the heat pipe 503 of the heating mechanism transfer heat to the heat transfer oil through the heat transfer plate 501. The heat transfer oil circulates under the action of the high-temperature resistant oil pump 504 and enters the hollow cavity 4 of the melting furnace 1 to heat the barrel 3. The toggle member rotates inside the hollow cavity 4 to stir the heat transfer oil. The stirring blade 901 of the liftable stirring mechanism rotates inside the barrel 3 to stir and mix the adhesive raw materials, so that the adhesive raw materials inside the barrel 3 are heated evenly.

[0089] The first temperature sensor 506 and the cooler 507 control the temperature of the heat transfer oil inside the hollow cavity 4 to prevent the temperature inside the melting furnace 1 from being too high, which would cause the components in the adhesive to decompose or deteriorate. The second temperature sensor 7 monitors the temperature inside the barrel 3, which is beneficial to the temperature control of the heating of the adhesive raw material. After the preparation is completed, the discharge valve 8 is opened to allow the adhesive to flow out from the bottom of the barrel 3.

[0090] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A device for preparing a binder of a powdered metal alloy, comprising a melting furnace (1), characterized in that: A material barrel (3) is sleeved inside the melting furnace (1), a hollow cavity (4) is arranged inside the side wall of the melting furnace (1), the hollow cavity (4) is filled with heat transfer oil, and a heating mechanism is arranged at the bottom of the melting furnace (1); The heating mechanism comprises a heat conducting plate (501), the interior of the heat conducting plate (501) is coated with a heating rod (502) and a heat conducting pipe (503), one end of the heat conducting pipe (503) is connected to the interior of the hollow cavity (4), the other end of the heat conducting pipe (503) is connected to a high temperature resistant oil pump (504), a temperature control pipe (505) is connected between the high temperature resistant oil pump (504) and the hollow cavity (4), and a first temperature sensor (506) and a cooler (507) are installed outside the temperature control pipe (505); A toggle member is rotatably connected inside the hollow cavity (4) of the melting furnace (1).

2. The preparation device of a powdered metal alloy binder according to claim 1, characterized in that: The heat conducting pipe (503) is of multi-tube parallel type, and the heat conducting pipe (503) and the temperature control pipe (505) are both covered with insulation sleeves.

3. The preparation device of a powdered metal alloy binder according to claim 2, characterized in that: The cooler (507) comprises a liquid cooling coil, which is sleeved on the outside of the temperature control tube (505), one end of the liquid cooling coil is connected to a water pump, the water inlet end of the water pump is connected to a cold water tank, and the other end of the liquid cooling coil is connected to a drain pipe.

4. The preparation device of a powdered metal alloy binder according to claim 3, characterized in that: The toggle member comprises a turntable (601), the turntable (601) is rotatably connected to the bottom of the hollow cavity (4) of the melting furnace (1), a plurality of spoiler paddles (602) are fixedly connected to the upper part of the turntable (601), a gear ring (603) is fixedly connected to the upper end of each spoiler paddle (602), a first motor (604) is fixedly connected to the outer side of the melting furnace (1), a driving gear (605) is installed on the outside of the driving shaft of the first motor (604), and the driving gear (605) is meshed with the outer side of the gear ring (603).

5. The preparation device of a powdered metal alloy binder according to claim 4, characterized in that: A second temperature sensor (7) is arranged inside the barrel (3), and a discharge valve (8) is arranged at the bottom of the barrel (3), and the discharge valve (8) passes through the bottom of the melting furnace (1).

6. The preparation device of a powdered metal alloy binder according to claim 1, characterized in that: The material barrel (3) is provided with a liftable stirring mechanism inside, the liftable stirring mechanism comprises a stirring blade (901), the middle of the stirring blade (901) is fixedly connected to a stirring shaft (902), the outside of the melting furnace (1) is fixedly connected to a support frame (903), the middle of the support frame (903) is threadedly connected to a threaded rod (904), the lower end of the threaded rod (904) is fixedly connected to the stirring shaft (902), the upper two sides of the support frame (903) are fixedly connected to guide rails (905), the guide rails (905) are slidably connected to a second motor (906), and the drive shaft of the second motor (906) is fixedly connected to the threaded rod (904).

7. The preparation device of a powdered metal alloy binder according to claim 6, characterized in that: The stirring blade (901) is curved, and scrapers are provided at both ends of the stirring blade (901), and the scrapers are in contact with the inner wall of the barrel (3).

8. The preparation device of a powdered metal alloy binder according to claim 1, characterized in that: A feeding mechanism is arranged at the top of the melting furnace (1), the feeding mechanism comprising a feeding chamber (201), the lower end of the feeding chamber (201) being connected to a crushing channel (202), the crushing channel (202) being arranged at an angle, and the lower end of the crushing channel (202) being connected to the interior of a material barrel (3).

9. The preparation device of a powdered metal alloy binder according to claim 8, characterized in that: The bottom of the crushing channel (202) is fixedly connected to a support rod, the internal rotating shaft of the crushing channel (202) is connected to a knife shaft, the outside of the knife shaft is fixedly connected to a crushing knife head, and one end of the upper part of the crushing channel (202) is fixedly connected to a third motor, and the drive shaft of the third motor is fixedly connected to the knife shaft.

10. A method for producing a binder of a powdered metal alloy, which is realized based on the preparation device of a binder of a powdered metal alloy according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Prepare raw materials according to the adhesive formula, weigh the raw materials for adhesive preparation according to the amount and ratio of raw materials; S2. Start the third motor, and the third motor drives the knife shaft to rotate inside the crushing channel (202) through the drive shaft; S3. The prepared adhesive raw material is fed into the crushing channel (202) through the feed chamber (201), and the knife shaft rotates at high speed to crush the adhesive raw material entering the crushing channel (202); S4. The crushed adhesive raw material is fed into the material barrel (3) through the inclined crushing channel (202); S5. The adhesive raw material inside the barrel (3) is stirred and mixed by a lifting stirring mechanism; S6. The heating mechanism is started, the heating rod (502) starts to heat up, the heat of the heating rod (502) is transferred to the heat pipe (503) through the heat conducting plate (501), and the heat conducting oil inside the heat pipe (503) is heated; S7. Start the high temperature oil pump (504), the high temperature oil pump (504) drives the heat transfer oil to circulate, the heated heat transfer oil is sent into the hollow cavity (4) of the melting furnace (1), the temperature inside the melting furnace (1) rises, and the barrel (3) is heated; S8. Start the first motor (604), drive the toggle member to rotate through the first motor (604), and rotate the spoiler paddle (602) of the toggle member inside the hollow cavity (4), so as to stir and mix the heat transfer oil inside the hollow cavity (4); S9. The heat transfer oil passes through the heat transfer pipe (503) driven by the high temperature oil pump (504), and the heat transfer oil is circulated and heated, so that the heat transfer oil temperature inside the hollow cavity (4) is maintained in the range of 150-220°C; S10. The adhesive raw material inside the barrel (3) is heated and melted, and an adhesive is formed under the action of stirring and mixing. After the adhesive is prepared, the discharge valve (8) at the bottom of the barrel (3) is opened, and the adhesive is discharged through the discharge valve (8) of the barrel (3).

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